diff --git a/dev-requirements.txt b/dev-requirements.txt
index f104af9a2..a3f75b4a3 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -5,4 +5,4 @@ sphinx>=1.5.5
 mypy>=0.782
 
 # Pin black as each version could change formatting, breaking CI randomly.
-black==24.1.1
+black==24.2.0
diff --git a/requirements.txt b/requirements.txt
index 180252121..5c35286f1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,10 +11,10 @@ fs==2.4.16
 skia-pathops==0.8.0.post1; platform_python_implementation != "PyPy"
 # this is only required to run Tests/cu2qu/{ufo,cli}_test.py
 ufoLib2==0.16.0
-ufo2ft==3.0.1
+ufo2ft==3.1.0
 pyobjc==10.1; sys_platform == "darwin"
 freetype-py==2.4.0
 uharfbuzz==0.39.0
-glyphsLib==6.6.3 # this is only required to run Tests/varLib/interpolatable_test.py
+glyphsLib==6.6.5 # this is only required to run Tests/varLib/interpolatable_test.py
 lxml==5.1.0
 sympy==1.12